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Factory sales directly,25PCS Twist Drill bit Set, HSS 4241 Roll Forged, Metal Box

Factory sales directly,25PCS Twist Drill bit Set, HSS 4241 Roll Forged, Metal Box

Product name:Factory sales directly,25PCS Twist Drill bit Set, HSS 4241 Roll Forged, Metal Box

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Details:

  Factory sales directly,25PCS Twist Drill bit Set, HSS 4241 Roll Forged, Metal Box

 

1. Standard: (1.0-13.0)*0.5mm  for DIN338

2. Steel material:  HSS 4241 

3. Process: Roll forged

4. Point angel: 118degree, 118degree split point, 135degree split point

5. Surface finishing: Bright finished, black oxide, Tin-coated, black & white, black & gold,

coffee color or  Black&amber finished.

6. Shank: Straight shank, reduced shank, taper shank taper shank drill bit twist drill bit

7. Hardness: 60-66HRC


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